Auxiliary heater.



W.\M. ADAMS & 1. n. RENICK.

AUXILIARY HEATER.

APPLICATION mao mmza. m5.

Patented Mar. 28, 1916.

THE C'OLUMBIA PLANOGRAPH 60., WASHINGTON, D. C.

'WIII'JLIJ-HVI. M. ADAMS AND JOSEPH D. RENIGK, 0F LORAIN, OHIO; SAID RENICK ASSIGNOR 'lO SAID ADAMS.

AUXILIARY HEATER.

Specification of Letters Iatent.

Patented Mar. 28, 1916.

To all whom it may concern:

Be it known that we, lVILLIAM M. ADAMS and JOSEPH D. RENICK, citizens of the United States, residing at Lorain, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Auxiliary Heaters, of which the following is a specification.

In heating systems utilizing hot air, places remotely situated from the furnace are not generally heated satisfactorily, this being due primarily to the cooling of the hot air before it escapes from the register or outlet.

The present invention provides for the re heating of thehot air inits travel at a point between the furnace and the'outlet, thereby insuring satisfactory heating of the room, hallor other place to be kept warm.

The invention consists of a heater disposed in the length of the hot air pipe for raising thetemperature of the hot air through the pipe, such heater being supplementary' in nature and utilized at'such times only when the ordinary hot air furnace is insuiiicient to perform the desired work.

This auxiliary heater may be utilized independently of the furnace in mild weather" for heating.

A further purpose of theinvention is the formation of a heater which may be readily disposed in the length of a hotair pipe to be used in conjunction with the hot air furnace or independently thereof according" to existing conditions and" the requirements to be met.

With these and other. objects in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination ofparts which will be hereinafter fully described and particularly claimed.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modificatime withinthe scope ofthe invention as claimed may be resorted to when desired.

Referring to the drawings eFigure 1 is a vertical central longitudinal section of a heater embodying the invention showing the same 'disposedin the length ofa hot air pipe; Fig. 2 is a transverse section on the in its passageouter flange 4 of each end line 2-2 of Fig. 1, looking to the left as in dlcated by the arrows; Fig. 3 is a cross section on the line 33 of Fig. 1, looking to the left as designated by the arrows.

Corresponding and like parts are referred to 1n the following descriptionand indicated in all the views of the drawings by the same reference characters.

The heater in its general formation embodles a body portion and heads or end pieces. The body portion of the heater is hollow and comprising an outer casing 1 and an inner casing 2. The casings l and 2 are spaced apart and have a concentric relation so as to provide a uniform space between them. To conserve heat the outer casing 1 1s preferably formed of a hollow wall or spaced shells inclosing a filling of asbestos or other refractory material. The inner casing 2 is preferably of sheet metal and of a singlethickness to provide for a ready transfer of the heat. The heads or end pieces 3 are of annular form and are provided with flanges at their inner and outer edges for reta1ning the parts in place. The piece faces inward so as to engage the adjacent end of the casing 1. The flange at the inner edge of each end plece projects in opposite directions, as indicated at 5 and 6, the flanges 5 facing mward engage the ends of the casing 2 whereas the flanges 6 facing outward receive the ends of the hot air pipe 7 making con nection with the ends of the heater. The flanges 4: and 5 retain the casings 1 and 2111 proper position and insure close joints. Tie rods 8 connect the heads or end pieces 3 and retain the several parts 1, 2 and 3 in proper position. The tie rods 8 are preferably located exterior to the body of the heater and pass through openings formed in cars projecting outward from the end pieces.

Longitudinal partitions 9 divide the space between the casings 1 and 2 so as to form an upper compartment 10 and a lower compart- The partitions 9 are oppositely disposed and extend the entire length of the body of the heater. A pipe 12eXtends through the casing 2 and its end portions 13 and 14 project in opposite directions and connect with opposite ends of the compartments 10 and 11. The pipe 12 is preferably disposed in the center of the casing 2 and the end 13 projects upwardly and attaches to one end of the casing 2 and communicates with an end portion of the compartment or space 10. The end portion 14 projects downwardly and connects with the opposite end portion of the casing 2 and communicates with the opposite end of the compartment 11. The arrangement of the pipe 12 insures a positive circulation of the hot air and gases of the auxiliary heater through the compartments 10 and 11.

A burner A is located at one end of the body and communicates with the space or compartment 10 at one end thereof. An outlet pipe B connects with the opposite end of the body of the heater and communicates with the space or compartment 11 at a point opposite the burner A. While the burner A may be of any construction it is shown as consisting of a mixing chamber 15 and a burner tube 16, such mixing chamber having an opening in a side which is controlled by means of a slide 17 whereby the burner may be lighted when required. A protecting plate 18 is attached to the casing 2 opposite the burner and prevents the burning out of the casing at this point. The outlet pipe B may connect with a chimney or extend to any convenient point for discharging the gases resulting from the burner A when the heater is in service.

When a heater embodying the invention is installed, a section of the hot air pipe 7 corresponding to the length of the heater is removed and is replaced by the heater. The inner diameter of the casing 2 preferably corresponds to the diameter of the hot air pipe 7 so as not to interfere with the 0rdinary passage of the hot air through the pipe 7. In mild weather when the furnace is suflicient to heat all places connected therewith the heater is not utilized but when the furnace is insuilicient to heat the hall, room or other place, the burner attached to the auxiliary heater located in the length of the hot air pipe 7 connecting such hall with the furnace, is lighted. The flame of the burner together with the hot air and gases resulting therefrom pass through the space formed between the two casings 1 and 2, such hot air and gases passing through the compartment 10 from one end to the opposite end thereof, hence through the pipe 12 to one end of the compartment 11 and thence through such compartment 11 to the opposite end thereof and out through the pipe B. The walls of the casing 2 and pipe 12 are heated to a high temperature and the heat radiated from such walls is taken up by the air' traveling through the hot air pipe 7 and the inner casing 2 of the heater, thereby heating the air and insuring a proper warming of the place to be heated. It is to be understood that when the furnace is not running the auxiliary heater may be utilized for warming the air passing through the pipe 7 so as to heat the place with which compartments, an outlet pipe having connection with one of said compartments for carrying off the gases formed by the heating device, and a pipe extending longitudinally through the inner casing and having its opposite ends connected with and forming the sole source of communication be tween said compartments.

2. A heater of the character specified comprising spaced inner and outer casings and having the space formed between such casings closed at opposite ends, longitudinal partitions dividing the space between the casings into compartments, a heating device in communication with an end of one of said compartments, an outlet pipe in communication with the opposite end of the other compartment, and a pipe passing through the inner casing and connected at one end with one of said compartments at the end. remote from the heating device and with the other compartment at the end remote from the outlet pipe.

3. heater of the character specified comprising inner and outer casings having the space formed between them closed at opposite ends, the inner casing being open throughout its length for the free circulation of air therethrough, a burner connected with the outer casing near one end thereof, an outlet pipe connected with the outer casing near the opposite end thereof, and a pipe passing through the inner casing and having one' end connected with the inner casing remote from the burner and having its opposite end connected with the opposite end of the inner casing remote from the outlet pipe.

f. A heater of the character described comprismg inner and outer casings, annular end pieces closing the space formed between the casings and having inner flanges to engage the ends of thecasings to hold them in proper position and to insure the formation of close joints, said end pieces having outwardly extending flanges longitudinal partitions dividing the space between the casings into independent compartments, a heating device having connection withone compartment near one end of the outer casing, an outlet pipe having connection with the other compartment at the opposite end of said outer casing, and a pipe passing through the inner casing and having its opposite ends connected with opposite ends of the inner casing to insure a positive circulation of the hot air through the space formed between the two casings.

5. A heater comprising spaced inner and outer casings having the space formed betweenv them closed at opposite ends, the inner casing being adapted to have air passed therethrough, a burner connected with an end portion of the outer casing and prising inner and outer casings, end pieces closing the space formed between the cas- Oopies of this patent may be obtained-tor five centsreach, by addressing the ings, said end pieces being provided with' outer laterally extending flanges engaging the outer casing and oppositely disposed inner flanges, one of the inner flanges of each end piece engaging the inner casing, partitions disposed between said casings and forming independent compartments, a mixing chamber arranged on the exterior of the outer casing, a burner disposed within the mixing chamber, an outlet pipe extending through the outer casing at a point on said casing opposite the burner, pipesfitted over the other inner flanges of said end pieces, and a pipe passing longitudinally through the inner casing and having its opposite ends deflected laterally, one endof said pipe communicating with one compartment and the other end of said pipe communicating with the other compartment.

In testimony whereof we aflix our-signatures in presence of two witnesses.

WILLIAM M. ADAMS. JOSEPH D. RENIOK. Witnesses:

CLARA VAN TILBURGH, H. G. WATSON.

Commissioner of latenta,

Washington, D. 0. 

